Synthesis and properties of a high-performance pyrimidine-containing self-catalyzed phthalonitrile polymer

Jianjun Xu, Haifeng Wang, Zhenjiang Zhang, Kaixiong Yang, Peixian Li, Xinggang Chen, Xiaoyan Yu, Kimiyoshi Naito, Qingxin Zhang

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


A self-catalytic monomer of phthalonitrile, 2-amino-4,6-bis[3-(3,4-dicyano-phenoxy)phenoxy] pyrimidine (ACPP), was synthesized by a one-pot method with resorcinol, 2-amino-4,6-dichloropyrimidine, and 4-nitrophthalonitrile. The chemical structure of the ACPP monomer was characterized by Fourier transform Infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy. The curing behavior of ACPP monomer was studied by differential scanning calorimetric, which indicated that the ACPP monomer had a low melting point (84 °C) and revealed an autocatalytic reaction and tremendously wide processing window (193 °C). Wide-angle X-ray diffraction (WAXD) and FTIR analyses were employed to explore the microstructure of the ACPP polymers. The properties of the three polymers with different curing procedures were investigated, which implied that the ACPP polymers exhibited excellent thermal stability, high modulus, superior glass-transition temperature (Tg > 400 °C), and low water absorption with the increase in curing extent.

Original languageEnglish
Pages (from-to)2287-2294
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Issue number23
Publication statusPublished - 2019 Dec 1
Externally publishedYes


  • low melting point
  • phthalonitrile
  • processabilities
  • self-catalyzed
  • thermostabilities

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry


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